. >> reporter: a number of presidents in their second terms have focused heavily on foreign policy. and now that mr. obama has begun the job of replacing his outgoing secretaries of state and defense and the director of the cia, he'll have some new faces to work with on his foreign policy team. joe johns, cnn, washington. >> and next hour, we take a closer look at the issues that will likely define president obama's second term. >>> randi, what's coming up next? >> we have a whole lot still ahead, victor. she set fashion trends four years ago when president obama was sworn into office, so what will michelle obama wear to this weekend's inaugural events? we'll have a look at the first lady's fashion, coming up. >>> i think that there's no more higher purpose right now than to take care of folks, put themselves in harm's way, protect our freedoms. >> more than half a million folks have done more than one tour. that's a tremendous emotional and physical burden we've put on our folks that's totally unprecedented. >> we're acknowledging that people are always going to have some effect. w